STV6889 datasheet(13/56 Pages) STMICROELECTRONICS

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STV6889

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Notes about vertical section

Note 10: Value of acceptable cumulated parasitic load resistance due to humidity, AGC storage capacitor leakage, etc.,

for less than 1% of Vamp change.

Note 11: The threshold for VVOB is generated internally and routed to VOscF pin. Any DC current on this pin will

influence the value of VVOB.

Note 12: Maximum of deviation from an ideally linear sawtooth ramp at null S-correction (SCOR at 0000000b) and null

C-correction (CCOR at 1000000b). The same rate applies to V-drive signal on VOut pin, no effect on EWOut.

Note 13: Maximum S-correction (SCOR at x1111111b), null C-correction (CCOR at 1000000b).

Note 14: Null S-correction (SCOR at 0000000b).

Note 15: "tVR" is time from the beginning of vertical ramp of V-drive signal on VOut pin. "TVR" is the duration of this ramp,

see Chapter 7 - page 21 and Figure 17.

Note 16: If VVEHT=VVEHTnull or VHEHT=VHEHTnull, respectively, the influence of VVEHT on vertical drive amplitude or the

influence of VHEHT on EW drive signal, respectively, is null.

Note 17: VVOamp = VVOT -VVOB

Note 18: Only the top of the saw tooth drifts. The same rate applies to V-drive signal on VOut pin.

Note 19: Informative, not tested on each unit.

Note 20: VSIZE at medium value 1000000b.

Note 21: VPOS at medium value 1000000b.

Note 22: VPOF at medium value 1000000b.

Note 23: VSAG at maximum value 1111111b.

IVOut

Current delivered by VOut output

-5

0.25

VSCor

S-correction range

(13)(20)(21)

AGC loop stabilized

tVR=1/4 TVR

(15)

tVR=3/4 TVR

-4.5

+4.5

VCCor

C-correction range

(14)(20)(21)

AGC loop stabilized

tVR=1/2 TVR

(15)

CCOR(Sad0Ah):

x0000000b

x1000000b

x1111111b

-2.5

+2.5

VVEHT

Control input voltage range on-

VEHTIn pin

146

VVEHTnull

Neutral point on breathing char-

acteristics(16)

4.0

Breathing compensation

VRefO < VVEHT < VCC

VVEHT(min)£VVEHT£VVE-

HT(max):

VEHTG (Sad1Ch):

x0000000b

x1000000b

x1111111b

-5

%/V

Table 2. Vertical section (Vcc = 12V, Tamb = 25°C)

Symbol

Parameter

Test Conditions

Value

Units

Min.

Typ.

Max.

/Vamp

amp

VEHT

-----------------------------------

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